Answer:
Cost to paint 4 walls of a room = $24.20
Cost of painting 3 walls of a room =$18.15
Step-by-step explanation:
(a) Abby purchased 4 2/5 gallons of paint to paint 4 walls of a room in her house.
[tex]4\frac{2}{5}gallons \ of \ paint = \frac{4*5+2}{5} =\frac{22}{5}[/tex]
1 gallon cost = 5.50
So 22/5 gallons cost = [tex]\frac{22}{5} * 5.5= 24.20[/tex]
Cost to paint 4 walls of a room = $24.20
(b)cost of painting 4 walls of a room = $24.20
cost of painting 1 wall of a room = [tex]\frac{24.20}{4} =6.05[/tex]
Cost of painting 3 walls of a room = 6.05 * 3= $18.15
